Subserosal Uterine Fibroid

Description

Prominently rendered in cross-section, the uterine body (corpus uteri) and cervix are opened to show the endometrial cavity centrally, surrounded by the thick myometrium and capped externally by the serosa (perimetrium). A subserosal uterine fibroid (leiomyoma, myoma) projects outward from the uterine wall, arising from the superficial myometrium and expanding on the serosal surface rather than into the endometrial cavity. Its bulk sits lateral to the midline uterine cavity and superficial to the myometrium, where it can distort the uterine contour while leaving the endometrium comparatively undisplaced. Cervical stroma and the endocervical canal are included inferiorly for anatomic context and orientation. Subserosal fibroids matter because their symptoms and management differ from submucosal disease: bleeding is often less prominent, while mass effect dominates, with pelvic pressure, urinary frequency from bladder compression, constipation from rectosigmoid crowding, and dyspareunia depending on size and location. Pedunculated subserosal lesions can also undergo torsion, presenting as acute pelvic pain and mimicking adnexal pathology. For surgeons, the serosal relationship clarifies the plane for laparoscopic myomectomy or hysterectomy, where serosal incision placement, pseudocapsule dissection, and hemostasis strategy are dictated by how superficial the leiomyoma sits relative to the uterine wall and adjacent broad ligament structures. Gynecology and reproductive anatomy courses can use this artwork to teach leiomyoma classification (subserosal versus intramural versus submucosal) and to link morphology with symptoms, exam findings, and ultrasound correlation. It also fits operative atlases, counseling handouts, and CME modules covering fibroid treatment options including myomectomy, hysterectomy, and uterine artery embolization. Anatomical accuracy verified by SciePro's Medical Advisory Board.